1 /* ======================================================================== */
2 /* ========================= LICENSING & COPYRIGHT ======================== */
3 /* ======================================================================== */
8 * A portable Motorola M680x0 processor emulation engine.
9 * Copyright 1998-2001 Karl Stenerud. All rights reserved.
11 * This code may be freely used for non-commercial purposes as long as this
12 * copyright notice remains unaltered in the source code and any binary files
13 * containing this code in compiled form.
15 * All other lisencing terms must be negotiated with the author
18 * The latest version of this code can be obtained at:
19 * http://kstenerud.cjb.net
24 #ifndef M68KCONF__HEADER
25 #define M68KCONF__HEADER
28 /* Configuration switches.
29 * Use OPT_SPECIFY_HANDLER for configuration options that allow callbacks.
30 * OPT_SPECIFY_HANDLER causes the core to link directly to the function
31 * or macro you specify, rather than using callback functions whose pointer
32 * must be passed in using m68k_set_xxx_callback().
36 #define OPT_SPECIFY_HANDLER 2
39 /* ======================================================================== */
40 /* ============================== MAME STUFF ============================== */
41 /* ======================================================================== */
43 /* If you're compiling this for MAME, only change M68K_COMPILE_FOR_MAME
44 * to OPT_ON and use m68kmame.h to configure the 68k core.
46 #ifndef M68K_COMPILE_FOR_MAME
47 #define M68K_COMPILE_FOR_MAME OPT_OFF
48 #endif /* M68K_COMPILE_FOR_MAME */
50 #if M68K_COMPILE_FOR_MAME == OPT_ON
56 /* ======================================================================== */
57 /* ============================= CONFIGURATION ============================ */
58 /* ======================================================================== */
60 /* Turn on if you want to use the following M68K variants */
61 #define M68K_EMULATE_010 OPT_OFF
62 #define M68K_EMULATE_EC020 OPT_OFF
63 #define M68K_EMULATE_020 OPT_OFF
66 /* If on, the CPU will call m68k_read_immediate_xx() for immediate addressing
67 * and m68k_read_pcrelative_xx() for PC-relative addressing.
68 * If off, all read requests from the CPU will be redirected to m68k_read_xx()
70 #define M68K_SEPARATE_READS OPT_OFF
73 /* If on, CPU will call the interrupt acknowledge callback when it services an
75 * If off, all interrupts will be autovectored and all interrupt requests will
76 * auto-clear when the interrupt is serviced.
78 int irq_ack_handler(int);
79 #define M68K_EMULATE_INT_ACK OPT_SPECIFY_HANDLER
80 #define M68K_INT_ACK_CALLBACK(A) irq_ack_handler(A)
83 /* If on, CPU will call the breakpoint acknowledge callback when it encounters
84 * a breakpoint instruction and it is running a 68010+.
86 #define M68K_EMULATE_BKPT_ACK OPT_OFF
87 #define M68K_BKPT_ACK_CALLBACK() your_bkpt_ack_handler_function()
90 /* If on, the CPU will monitor the trace flags and take trace exceptions
92 #define M68K_EMULATE_TRACE OPT_OFF
95 /* If on, CPU will call the output reset callback when it encounters a reset
98 #define M68K_EMULATE_RESET OPT_OFF
99 #define M68K_RESET_CALLBACK() your_reset_handler_function()
102 /* If on, CPU will call the set fc callback on every memory access to
103 * differentiate between user/supervisor, program/data access like a real
104 * 68000 would. This should be enabled and the callback should be set if you
105 * want to properly emulate the m68010 or higher. (moves uses function codes
106 * to read/write data from different address spaces)
108 #define M68K_EMULATE_FC OPT_OFF
109 #define M68K_SET_FC_CALLBACK(A) your_set_fc_handler_function(A)
112 /* If on, CPU will call the pc changed callback when it changes the PC by a
113 * large value. This allows host programs to be nicer when it comes to
114 * fetching immediate data and instructions on a banked memory system.
116 #define M68K_MONITOR_PC OPT_OFF
117 #define M68K_SET_PC_CALLBACK(A) your_pc_changed_handler_function(A)
120 /* If on, CPU will call the instruction hook callback before every
123 void M68KInstructionHook(void);
124 #define M68K_INSTRUCTION_HOOK OPT_SPECIFY_HANDLER
125 #define M68K_INSTRUCTION_CALLBACK() M68KInstructionHook()
128 /* If on, the CPU will emulate the 4-byte prefetch queue of a real 68000 */
129 #define M68K_EMULATE_PREFETCH OPT_OFF
132 /* If on, the CPU will generate address error exceptions if it tries to
133 * access a word or longword at an odd address.
134 * NOTE: Do not enable this! It is not working!
136 #define M68K_EMULATE_ADDRESS_ERROR OPT_OFF
139 /* Turn on to enable logging of illegal instruction calls.
140 * M68K_LOG_FILEHANDLE must be #defined to a stdio file stream.
141 * Turn on M68K_LOG_1010_1111 to log all 1010 and 1111 calls.
143 #define M68K_LOG_ENABLE OPT_OFF
144 #define M68K_LOG_1010_1111 OPT_OFF
145 #define M68K_LOG_FILEHANDLE some_file_handle
148 /* ----------------------------- COMPATIBILITY ---------------------------- */
150 /* The following options set optimizations that violate the current ANSI
151 * standard, but will be compliant under the forthcoming C9X standard.
155 /* If on, the enulation core will use 64-bit integers to speed up some
158 #define M68K_USE_64_BIT OPT_ON
161 /* Set to your compiler's static inline keyword to enable it, or
162 * set it to blank to disable it.
163 * If you define INLINE in the makefile, it will override this value.
164 * NOTE: not enabling inline functions will SEVERELY slow down emulation.
167 #define INLINE static __inline__
171 /* If your environment requires special prefixes for system callback functions
172 * such as the argument to qsort(), then set them here or in the makefile.
178 #endif /* M68K_COMPILE_FOR_MAME */
181 /* ======================================================================== */
182 /* ============================== END OF FILE ============================= */
183 /* ======================================================================== */
185 #endif /* M68KCONF__HEADER */